diff --git a/lib/fs.h b/lib/fs.h
index c3200dc7a..11111c926 100644
--- a/lib/fs.h
+++ b/lib/fs.h
@@ -67,12 +67,13 @@
 #define NLENGTH(dirent) (strlen ((dirent)->d_name))
 #define DIRENT_LENGTH_COMPUTED 1
 
+/* DragonFlyBSD doesn't provide MAXNAMLEN macro */
 #ifndef MAXNAMLEN
-#define MC_MAXFILENAMELEN 256
-#else
-#define MC_MAXFILENAMELEN MAXNAMLEN
+#define MAXNAMLEN NAME_MAX
 #endif
 
+#define MC_MAXFILENAMELEN MAXNAMLEN
+
 /*** enums ***************************************************************************************/
 
 /*** structures declarations (and typedefs of structures)*****************************************/